fix(scheduled-task): deliver verified WeChat links only after page is ready

Wait for HTML materialization before releasing delivery contracts, pass
verified MindSpace URLs through proactive WeChat sends, resend on reconcile
when pages land late, and report deferred customer-service delivery as unsent.

Co-authored-by: Cursor <cursoragent@cursor.com>

notification-dispatcher.mjs

@@ -1,8 +1,15 @@
+function resolveWechatDispatchSent(result) {
+  if (result && typeof result === 'object') {
+    return result.sent !== false && !result.deferred && !result.skipped;
+  }
+  return result !== false;
+}
+
 export function createNotificationDispatcher({ sendWechatTextToUser, logger = console } = {}) {
-  const sendWechat = async (userId, text) => {
+  const sendWechat = async (userId, text, options = {}) => {
     if (typeof sendWechatTextToUser !== 'function') return false;
-    await sendWechatTextToUser(userId, text);
-    return true;
+    const result = await sendWechatTextToUser(userId, text, options);
+    return resolveWechatDispatchSent(result);
   };
 
   return {
@@ -16,13 +23,14 @@ export function createNotificationDispatcher({ sendWechatTextToUser, logger = co
       });
       return sent;
     },
-    async sendScheduleNotification({ userId, text }) {
-      const sent = await sendWechat(userId, text);
+    async sendScheduleNotification({ userId, text, verifiedHtmlUrls = [] }) {
+      const sent = await sendWechat(userId, text, { verifiedHtmlUrls });
       logger.info?.('Notification dispatch:', {
         type: 'schedule_notification',
         userId,
         dedupeKey: null,
         sent,
+        verifiedHtmlCount: verifiedHtmlUrls.length,
       });
       return sent;
     },